Bobbin-case for sewing-machines



(No Model.)

H.A.BATES. BOBBIN CASE FOR SEWING MACHINES.

Patented Sept. 22 1896;

0% ia/Lma UNITED STAT S,

PATENT ()rrrcn,

HENRY A. BATES, on YONKERS, NEW YORK.

BOBBlN- CASE FOR SEWING-MACHINES.

SPEGIFICATION forming part of Letters Patent No. 568,107, dated.September 22, 1896.

Application filed July 24, 1895.

T0 6!! whom it may concern:

Be it known that I, HENRY A. BATES, a citizen of the United States,residing at Yonkers,

in the county of Westchester and State of New York, have invented anImprovement in Bobbin-Gases for Sewing-Machines, of which the followingis a specification.

Bobbin-cases for sewing-machines have heretofore been made in two partsthat can be separated one from the other, so as to introduce into suchcase a cop or bobbin ready wound, thereby facilitating theuse of themachine and preventing the loss of time in winding the thread into theshuttle, and in some instances rotary hooks have been made open at oneside and with a cavity into which a bobbin of thread can be inserted.

In sewing-machines of the class known as the WVheeler & Wilson sewing-machine No. 2 the bobbin is made of two concave disks united togetherby a central tube, there being a narrow slit or opening between theedges of the disks, and the thread is wound into the bobbin by rotatingthe same, and such bobbin has 'not heretofore been adapted to receiveinto ita ready-wound bobbin of thread.

In my present improvement the bobbincase is made with one side in theform of a concave disk, as heretofore used in the Wheeler & Wilsonshuttle, and the configuration of the edges of the bobbin-case isunaltered, so that the bobbin-case is adapted to the place into which ithas been heretofore received; but instead of having two complete disksthe bobbin-case is open at one side, and the ring-shaped edge whichtakes the place of one of the disks is permanently affixed to the edgeof the other disk, there being an opening at one part of the edgethrough which the thread passes, so that the side of the bobbin-case isopen for the reception of the readywound bobbin, the same being passedover the central pin or tube.

In cases where the bobbin-case has been open at one side it has not beenadapted simply to the reception of a bobbin of thread on a paper tube,as the same would be liable to fallout or the thread to becomeentangled. I combine with the circular bobbin-holder having an open sideand a rim, the surfaces being inclined in both directions to theperiphery and having an opening through the satin No. 556,988 (No man.)

periphery for the thread, a central circular support or tube, a sleevearound such central support, and meansfor holding the same permanentlyin position and allowing it to rotate freely, such sleeve being adaptedto receive and fit tightly the paper tube of the thread-bobbin, so as tohold such threadbobbin within the bobbin-holder as the thread is drawnoff at the periphery through the opening.

By this means I am enabled to provide a bobbin-case that is adapted tothe reception of a ready-wound bobbin, and such bobbincase can be usedin the machines of the Wheeler dz Wilson type, and there is no risk ofthe needle-thread becoming caught or entangled by the bobbin-case as itis passed around the same,and loss of time resulting from winding thethread into the bobbin is avoided, and the dilficulties experienced inbobbin-cases made with two separable disks is avoided, because where twoseparable disks are employed with split tubes passingone into the otherthe bobbin-case may be too thick to work properly in the machine inconsequence of the bobbin of thread being too thick or in consequence ofthe two parts of the bobbincasenot being properly set together.

In the drawings, Figure 1 is a side view of the bobbin-case, and Fig. 2is a cross-section of the same in a magnified size.

The bobbin-case is made of a concave disk A, which is similar to thedisk at one side of the bobbin-case heretofore made use of, and in thecenter of this disk is a short tube B, permanently fastened in position.In place of employing a second disk similar to the disk A, I make use ofthe beveled rim 0, which has a central opening which is as large as thebobbin of thread that is to be made use of, and the beveled rim 0 ispermanently connected around its edge to the edges of the concave diskA, except at the part 2, where there is an elongated opening or slotwhich comes in the same position in the sewing-Inachine as theperipheral slot around the ordinary Wheeler & Wilson bobbin; but in thepresent instance such slot is only of a length suitable for the threadto be passed out through the same.

The bobbin D of thread is wound in any suitable manner, preferably upona paper tube 3, and it is advantageous to wind the thread zigzag aroundthe edges of the thread bobbin, so as to lessen the risk of the threaddrawing off around the short tube 13, and I prefer to employ a loosetube E around the short tube B, such loose tube E being held in positionby a collar or small flange around the end of the tube B; but such loosetube E may turn with more or less friction, so as to give more or lesstension to the thread as the bobbin of thread is revolved in the act ofdrawing off the thread, it being understood that the paper tube 3 fitsthe exterior of the loose tube E with sufficient friction to cause thetwo to revolve together. It will be ob served that the thread has to bepassed through the opening or slot 2, and the thread may be threadedthrough this opening or slot previous to or at the time of inserting thethread-bobbin into the machine; but usually it is advantageous to cut inthe beveled rim 0 a diagonal slot 4, so that the thread can be drawnthrough the same into the opening or slot 2 previous to placing thebobbin-case into the sewing-machine in the usual position. It will beobserved that in consequence of the periphery of the bobbin-caseremaining unchanged it will operate in the usual manner, and it may beplaced in the sew-ingmachine either Way that is desired, especially inview of the fact that the friction between the paper tube 3 and theloose tube E prevents the thread-bobbin falling out from the bobbincase.

I claim as my invention The combination with the circular bobbinholderhaving an open side and a rim, the surfaces being inclined in bothdirections to the periphery and having an opening'through the peripheryfor the thread and a central circular support or tube, of a sleevearound such central support and means for holding the same permanentlyin position and allowing it to rotate freely, such sleeve being adaptedto receive and fit tightly the paper tube of the thread-bobbin so as tohold such threadbobbin within the bobbin-holder as the thread is drawnoff at the periphery through-the opening, substantially as set forth.

Signed by me this 22d day of July, 1895.

H. A. BATES.

\Vitnesses:

HAROLD SERRELL, S. T. HAVILAND.

